Laminating adhesives containing microencapsulated catalysts
    7.
    发明申请
    Laminating adhesives containing microencapsulated catalysts 审中-公开
    含有微囊化催化剂的层压粘合剂

    公开(公告)号:US20060078741A1

    公开(公告)日:2006-04-13

    申请号:US10963258

    申请日:2004-10-12

    IPC分类号: C08F8/30 C09J101/00 B32B9/04

    摘要: The curing rate of a two component laminating adhesive is effectively accelerated by incorporating in at least one component a microencapsulated catalyst. When the laminating adhesive is subjected to an effective amount of pressure (for example, the pressure applied when laminating flexible films together using nip rollers), the catalyst (which may be, for example, a dialkyl tin dicarboxylate) is released from encapsulation and is made available to catalyze the polyurethane-forming reaction between the isocyanate groups and the active hydrogen-functionalized groups in the adhesive mixture.

    摘要翻译: 通过在至少一种组分中加入微囊化催化剂,有效地加速了双组分层压粘合剂的固化速度。 当层压粘合剂经受有效量的压力时(例如,使用夹辊将柔性膜层压在一起时施加的压力),催化剂(例如二羧酸锡二羧酸酯)可以从包封中释放出来,并且是 可用于催化粘合剂混合物中异氰酸酯基团与活性氢官能化基团之间的聚氨酯形成反应。

    Method of forming flexible packages and novel flexible packages
    10.
    发明授权
    Method of forming flexible packages and novel flexible packages 失效
    形成柔性包装和新型柔性包装的方法

    公开(公告)号:US4883694A

    公开(公告)日:1989-11-28

    申请号:US322351

    申请日:1989-03-13

    摘要: High performance polymer systems based on water dispersed polyurethanes obtained from the reaction of NCO terminated prepolymers with a peroxide compound containing at least one active hydrogen atom, methods of making such polymer systems and their use as hydrolytically stable flexible substrate bonding agents are disclosed. Flexible packages, e.g., retortable laminate pouches, are formed by bonding together sections of films, foils or like flexible substrates using such adhesives.

    摘要翻译: 公开了基于由NCO封端的预聚物与含有至少一个活性氢原子的过氧化物化合物反应获得的水分散聚氨酯的高性能聚合物体系,制备这种聚合物体系的方法及其作为水解稳定的柔性基底粘合剂的用途。 通过使用这种粘合剂将膜,箔或类似柔性基底的部分粘合在一起,形成柔性包装,例如可蒸煮层压袋。